Hi Kralik glass produced a tadpole decor and they also produced iridescent glass, though the only tadpole applied decorations that I've ever seen have been of one single colour, iridescent green or clear green and not striped (though I could be wrong). You can see examples of Kralik tadpole decor in www.kralik-glass.com. Have you looked at Harrach glass or other bohemian glass makers?

I have one very similar to this (although yours looks shorter/squatter) with amber trails and peacock eyes. I'm pretty sure they are the same maker - I thought they were probably Kralik. I noticed one like yours sold at Fieldings recently I think? but I don't know what they gave as attribution, I can't remember. m

In www.kralik-glass.com under Kralik visual decor list on left, open n-z index and tadpoles glass examples are there if you open the tadpoles pics That's one of the best Kralik online data bases in my opinion

Thanks m,saved me the trouble I doubt it's Stourbridge in fact the clear glass reminds more of Walsh but chriss; did look there,in fact there are a few of my pieces on the site,if you didn't know it was one of the GMB members (Craig) who set it up

mmm it doesn't look quite the same as Walsh though does it? I have compared to mine and it's just not quite right. Kralik were also fond of this faint ribbed and twisted effect I think and they did many of their pieces in 'verre de soie' especially the ones with applied flowers leaves etc. as far as I can find.m